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15 
 

R

EAR 

D

RUM

 

F

RONT 

D

RUM

 

C

ONVEYOR 

B

ELT

 

 

S

ETTING 

T

HE 

D

EPTH OF 

C

UT

 

Adjusting the sander

 

for the proper contact 

between the abrasive and the stock determines the 
mechanical depth of cut. 

Determining the depth 

of cut is the most important set-up procedure 

before operating the

 

sander. It may take some 

experimentation to determine the prop- er depth 
of cut, given the variables of abrasive grit, type of 
wood, and feed rate. For best results, use scrap 
wood to practice sanding and to develop skill and 
familiarity with the machine before doing finish 
work.

 

A good rule of thumb when sanding with grits 

finer than 80 is to raise the conveyor table so the 
drum(s) contacts the workpiece but still can be 
rotated by hand. When using grits coarser than 80 
grit, you may be able to raise the conveyor table 
slightly more. However, a combination of several 
variables will determine the proper depth of cut 
to use, including the following:

 

1.

 

Abrasive type and grit size.

 

2.

 

Width of the piece being processed.

 

3.

 

Hardness of the piece.

 

4.

 

Feed rate of the conveyor belt.

 

The depth of cut of the primary drum is  

adjusted by the table height adjustment handle.

 

The depth of cut of the secondary drum is 

controlled by the two adjustment knobs (analog 
indicators) located on both sides of the drum. The 
drum adjustment knobs allow proper depth of cut 
with virtually any abrasive grit combinations on 
the drums. The two drums are typically both 
used during sanding operations, but either the 
primary or secondary drum can be used alone.

 

Front Drum.  

To  adjust the front drum, set the 

drum height equal to the thickness of the piece to 
be processed. This is most easily done as follows: 
Lower the conveyor table to a depth greater than 
the thickness of the board. 

Do not start the 

drum at this time.

 

Start the conveyor and feed the board until it is

 

beneath the front drum. Raise the conveyor table 
so the front drum contacts the board but the drum 
can still be rotated by hand. Continue to run the 
board through the machine. This is the setting for 
the first sanding pass.

 

The depth of cut can be measured on the depth 

gauge, or by fractions of a revolution of the height 
adjustment handle. (Note: One revolution of the 
handle will raise the table 3/32 of an inch; 1/3 of a 
turn will equal 1/32 of an inch, etc.)

 

Rear Drum. 

Sanding with a different abrasive 

grit on each drum is possible in a single pass. The 
coarser abrasive is wrapped on the front drum 
for dimensioning and surfacing of the wood, 
while the finer abrasive is wrapped on the rear 
drum. When used in this way, the rear drum 
generally is positioned just slightly lower than 
the front drum so it removes the scratches left by 
the coarser grit on the front drum.

 

However, the exact depth of cut of the rear drum 
will depend on the specific abrasive grits on each 
of the drums.

 

The chart shows grit combinations and rear 

drum settings, can also be found under the dust 
cover of your machine. It suggests settings for 
various abrasive grit combinations; try these to 
start and make adjustments as necessary for your 
work. When adjusting the rear drum, turn

 

 

Fig. 12. Relative positions of dual drums.

 

Summary of Contents for SuperMax 25x2

Page 1: ...OWNERS S MANUAL 25x2 SuperMax Drum Sander LagunaTools com...

Page 2: ...Laguna Tools machine for your shop Regards Torben Helshoj President Founder Laguna Tools This manual applies to the 25x2 double head drum sanders Enter the model number serial number and purchase info...

Page 3: ...Depth Gauge 17 Selecting Drum Abrasives 18 Tips For Maximum Performance 19 TROUBLESHOOTING Troubleshooting Guide Motors 21 Troubleshooting Guide Machine 22 Troubleshooting Guide Operations 24 SERVICIN...

Page 4: ...REN AWAY All visitors should be kept safe distance from work area 6 MAKE WORKSHOP KID PROOF with padlocks master switches or by removing starter keys 7 DON T FORCE TOOL It will do the job better and s...

Page 5: ...o persons 18 NEVER STAND ON TOOL Serious injury could occur if the tool is tipped or if the cutting tool is unintentionally contacted 19 CHECK DAMAGED PARTS Before further use of the too a guard or ot...

Page 6: ...eo QR code Below is a QR code which links to a set up video for the 25 x 2 sander Scan the QR code with your smartphone to be directed to the video at LagunaTools com Tension Rollers Height Adjustment...

Page 7: ...s one each for the right and left column tubes Important These set screws are tightened for shipping and must be loosened and readjusted before operating either the height adjustment mechanism or the...

Page 8: ...ords are not recommended but if used should be of at least 10 gauge wire for lengths up to 10 and of at least 8 gauge wire for longer lengths Views of junction box under conveyor motor with cord insta...

Page 9: ...ults follow the recommendations of the manufacturer of your dust collection equipment CHECKING DRUM ALIGNMENT The sander was shipped from the factory preadjusted with the drum s aligned to the con vey...

Page 10: ...stment indicators to zero on both sides Toset loosen the hex nut then moving the indicator scale so that the zero mark is directly under the pointer and retightening the hex nut see Fig 7 Likewise zer...

Page 11: ...ustment besuretoloosenbothoftheset screwslocatedon the front of bothtable support castings see Fig 3 and Fig 9 to allow the table support to slide on Fig 9 Table height adjustment both column tubes Th...

Page 12: ...trailing edge of the wrap properly cut rewrap the drum and insert the tapered end through the slot in the right inboard end of the drum Insert the tapered end into the inboard take up fastener Pull u...

Page 13: ...nstall Fig 10 d Insert tapered end into outboard slot Fig 10 e Wrap around drum without overlap Fig 10 f Mark wrap where it crosses drum edge Fig 10 g Insert tapered end into inboardslot Fig 10 h Allo...

Page 14: ...to begin to use the sander The basic operating procedure for all drum sander models is asfollows 1 Set depth of cut 2 Start drum s 3 Start conveyor and select feedrate 4 Start dust collector system 5...

Page 15: ...ither the primary or secondary drum can be used alone Front Drum To adjust the front drum set the drum height equal to the thickness of the piece to be processed Thisismosteasilydoneasfollows Lowerthe...

Page 16: ...h of sanding Aslowerfeedrateprovidesmorerevolu tions of the drum per inch of sanding to allow a greater depth of cut and smoother sanding TheIntellisandcontrol SeeFig 13 continuously monitors the load...

Page 17: ...til the drum s wrapped with abrasive touches the con veyortable Make sure the indicator is pointing at zero If not loosen the two screws at the bottom of the indicator and slide indicator until pointi...

Page 18: ...e toburnish ing because of its open pores Selecting Grit Combinations The chart shown is a general guide to consult when selecting grits to use on dual drum machines and setting the rear drum This cha...

Page 19: ...eces thicker than 3 4 should be longer than the minimum normally recommended to prevent tipping of the stock see Specifications Goingtolongerpieces is especiallyimportantwhensandingboxesor other tall...

Page 20: ...o 1 hour then using a brush to remove any build up orburns Drytheabrasivestripscompletelybefore reuse In some cases build ups resulting from burns can beremoved with Plexiglas held on edge over a rota...

Page 21: ...RS Problem PossibleCause Solution Motors do not start 1 Main power cord Plug in primary power unplugged from receptacle cord 2 Circuit fuse blown or circuit Replace fuse or reset breaker tripped break...

Page 22: ...t collection 4 Inadequate abrasive 5 Stockfedat 90 angle to drum Reduce depth of cut Use slower feed rate Increaseairflow at dust ports Use open coat abrasive Anglestocktoavoidresin line build up Conv...

Page 23: ...djust belt rollers misaligned 3 Conveyor table not flat Readjust by leveling with and square leg glides 4 Conveyor belt worn or Replace conveyor belt defective 5 Roller bushings elongated Replace bush...

Page 24: ...ar motorstalling ExcessiveV belttension Set screw loose on shaft couplerbetweengearmotor and conveyor tighten Conveyor bushings dry lubricate Rippled sanded surface uniformly spaced ripples 1 Excessiv...

Page 25: ...asive strips 4 Abrasive is too fine 5 Abrasivestrips overlapped 6 Drum out of alignment Increase feed rate Reduce depth of cut or increase grit coarseness Reduce depth of cut cleanstripsorreplace Repl...

Page 26: ...ily further adjustments may be necessary as outlinedbelow Followingthesestepsshouldresult in smooth operation Readjustment Procedure 1 Loosen the set screws located at the front of the table support c...

Page 27: ...smooth and even If not adjust the gears for good mesh Fig 18 Measure the space between the miter gear and the adjusting screw support that holds the height adjusting screw in place Fig 19 The distance...

Page 28: ...r the feed table has been lev eled loosenallfourtensionrollersuspensionbolts Fig 22 Comparing drum support casting heights see Fig 26 Raise the tension roller suspension assembly to its highest positi...

Page 29: ...um can barely be turned by hand Measure at both sides of the drum to check that the secondary drum is parallel to the table To adjust the secondary drum alignment use the right and left drum adjustmen...

Page 30: ...width of the board approxi mately 2 1 4 from the end of the board If a snipe mark occurs on the trailing end of the board adjust the infeed tension roller Tensionroller pres surecanbeadjustedtwoways e...

Page 31: ...r re installation Note If the conveyor belt continually tracks to one side of the machine first try reversing the belt on the conveyor bed If this doesn t remedy the problem place a level on the conve...

Page 32: ...lt and replace it with the newV belt Machine Reassembly 1 Toreassemble the unit after replacing the V belt first place the transfer rod back through the machine Tighten the shaft collar Reinstall the...

Page 33: ...place Lift control board from housing Install the new controller referring to the correct electrical diagram and reverse the disassembly procedure Toreplace the on off switch remove the two screwshold...

Page 34: ...G 30 5206 2 13 SUPPORT ADJUSTING SCREW 30 1112 2 14 SUPPORT OUTBOARD TABLE 30 5204 1 15 HEX NUT 5 16 18 12 0003 4 16 FLAT WASHER 5 16 11 0206 4 17 BRASS TIPPED SET SCREW 5 16 18X3 4 10 9906 4 18 KNOB...

Page 35: ...ASE COLUMN 30 1101 1 2 36 LEVELING FEET 20 0655 4 37 HEX NUT 3 8 16 12 005 8 38 BASE SUPPORT BRACKET 40 0230 1 39 RETAINING RING E12 20 0752 1 40 OUTBOARD HEIGHT ADJ SCREW 30 1211 1 41 BEARING R8ZZ BB...

Page 36: ...36 STAND ASSEMBLY...

Page 37: ...8X1 10 1204 6 15 HEX CAP SCREW 5 16 18X1 1 4 10 9106 2 16 FLAT WASHER 5 16 11 0206 10 17 SPACER 5 16 I D 30 1305 2 18 BEARING 50 3067 4 19 OUTBOARD DRUM MOUNT BRACKET 40 0519 1 20 HEX NUT 5 16 18 12 0...

Page 38: ...1028A 1 50 PHILLIPS FILLISTER HEAD SCREW 8 32X1 10 3107 6 51 COMPRESSION SPRING 20 3268 6 52 CARRIAGE BOLT 5 16 18X3 4 10 1203 4 53 FLAT WASHER 3 16 913002 253 2 54 TENSION ROLLER BASE BRACKET 40 030...

Page 39: ...39 DUAL DRUM HEAD ASSEMBLY...

Page 40: ...IDE RAIL RIGHT 40 4144 1 14 ROLLER SUPPORT BRACKET 635DS 338 1 15 DRIVEN ROLLER 30 3106 1 16 HEX CAP SCREW 3 8 16X3 4 480BS 177 4 17 FLANGE LOCK NUT 3 8 16 12 0209 16 18 CONVEYOR BED 40 4101 1 19 SIDE...

Page 41: ...30 3102 1 45 CARRIAGE BOLT 5 16 18X1 10 1204 4 46 MOTOR 5HP 1Ph 70 0507 1 47 HEX NUT 10 32UNF 480BS 216 2 48 SPRING WASHER 5 16 480BS 167 4 49 LOWER INNER BELT GUARD 40 1000A 1 50 LOCK WASHER M6 635D...

Page 42: ...S 350 3 66 STRAIN RELIEF PG 21 PG 21 1 67 JUNCTION BOX 913003 354 1 68 RUBBER BUSHING D25 PLAREVO1216 205 1 69 SCREW M4X0 7X6 913003 356 4 70 SCREW M6X1 0X8 913003 357 4 71 SCREW M5X0 8X8 913003 361 1...

Page 43: ...43 CONVEYOR MOTOR...

Page 44: ...r Direct driveDC motor Infinitelyvariablefrom0to15feetperminutewithIntellisand Conveyor Belt 100 grit abrasive conveyor belt included Drive Motor 5 HP TEFC 1 PH 1 740 RPM 208 230 volts 60 HZ Minimum S...

Page 45: ...45 CS DE S CURIT...

Page 46: ...de v tements amples de gants de bracelets de colliers et autres bijoux pouvant tre happ s par les parties mo biles de la machines Portez des chaussures antid ra pantes et rassemblez et couvrez les ch...

Page 47: ...moval 60 5060 60 9060 60GRIT Surfacinganddimensioningboards trueingwarpedboards 60 5080 60 9080 80 GRIT Surfacing light dimensioning remove planer ripples 60 5100 60 9100 100 GRIT Light surfacing remo...

Page 48: ...M AND BELT GUARDING IN PLACE KEEPHANDSANDCLOTHINGAWAYFROMOPERATINGDRUM S BELT AND PULLEYS ALWAYSMAINTAIN CONTROL OF STOCK TO AVOID KICKBACK KNOW HOW TO PREVENT IT ALWAYSDISCONNECT ELECTRICAL POWER BEF...

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